would ascertain
Regular verb: ascertain - ascertained- ascertained

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd ascertain
you'd ascertain
she'd ascertain
we'd ascertain
you'd ascertain
they'd ascertain 	I'd be ascertaining
you'd be ascertaining
she'd be ascertaining
we'd be ascertaining
you'd be ascertaining
they'd be ascertaining	I would've ascertained
you would've ascertained
she would've ascertained
we would've ascertained
you would've ascertained
they would've ascertained	I would've been ascertaining
you would've been ascertaining
she would've been ascertaining
we would've been ascertaining
you would've been ascertaining
they would've been ascertaining	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I wouldn't ascertain
you wouldn't ascertain
she wouldn't ascertain
we wouldn't ascertain
you wouldn't ascertain
they wouldn't ascertain 	I wouldn't be ascertaining
you wouldn't be ascertaining
she wouldn't be ascertaining
we wouldn't be ascertaining
you wouldn't be ascertaining
they wouldn't be ascertaining	I wouldn't have ascertained
you wouldn't have ascertained
she wouldn't have ascertained
we wouldn't have ascertained
you wouldn't have ascertained
they wouldn't have ascertained	I wouldn't have been ascertaining
you wouldn't have been ascertaining
she wouldn't have been ascertaining
we wouldn't have been ascertaining
you wouldn't have been ascertaining
they wouldn't have been ascertaining	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
would I ascertain?
would you ascertain?
would she ascertain?
would we ascertain?
would you ascertain?
would they ascertain? 	would I be ascertaining?
would you be ascertaining?
would she be ascertaining?
would we be ascertaining?
would you be ascertaining?
would they be ascertaining? 	would I have ascertained?
would you have ascertained?
would she have ascertained?
would we have ascertained?
would you have ascertained?
would they have ascertained? 	would I have been ascertaining?
would you have been ascertaining?
would she have been ascertaining?
would we have been ascertaining?
would you have been ascertaining?
would they have been ascertaining? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
wouldn't I ascertain?
wouldn't you ascertain?
wouldn't she ascertain?
wouldn't we ascertain?
wouldn't you ascertain?
wouldn't they ascertain? 	wouldn't I be ascertaining?
wouldn't you be ascertaining?
wouldn't she be ascertaining?
wouldn't we be ascertaining?
wouldn't you be ascertaining?
wouldn't they be ascertaining? 	wouldn't I have ascertained?
wouldn't you have ascertained?
wouldn't she have ascertained?
wouldn't we have ascertained?
wouldn't you have ascertained?
wouldn't they have ascertained? 	wouldn't I have been ascertaining?
wouldn't you have been ascertaining?
wouldn't she have been ascertaining?
wouldn't we have been ascertaining?
wouldn't you have been ascertaining?
wouldn't they have been ascertaining?